Front with Vormerkzettell
Messenger attached the slip "Adr. Hammerschlag abgereist (signature)". (Addressee Hammerschlag departed (signature))
Telegrafen-Centrale marked slip in blue: "Abs. ret." (Return to sender)
Front with Vormerkzettel folded back
| From: | 15 – Kärnthnerring | May 27 1907 at 3:00 pm |
| Arrival: | C.R. – Telegrafen Centrale returned to 15 | 3:30 pm |
| Return | 15 – Kärnthnerring returned to sender? This is unusual. | 5:20 pm |